1. A phase 1/2 study of NS-87/CPX-351 (cytarabine and daunorubicin liposome) in Japanese patients with high-risk acute myeloid leukemia.
- Author
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Usuki K, Miyamoto T, Yamauchi T, Ando K, Ogawa Y, Onozawa M, Yamauchi T, Kiyoi H, Yokota A, Ikezoe T, Katsuoka Y, Takada S, Aotsuka N, Morita Y, Ishikawa T, Asada N, Ota S, Dohi A, Morimoto K, Imai S, Kishimoto U, Akashi K, and Miyazaki Y
- Subjects
- Humans, Middle Aged, Aged, Male, Female, Japan, Treatment Outcome, Asian People, East Asian People, Daunorubicin administration & dosage, Daunorubicin pharmacokinetics, Cytarabine administration & dosage, Cytarabine pharmacokinetics, Leukemia, Myeloid, Acute drug therapy, Liposomes, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Antineoplastic Combined Chemotherapy Protocols adverse effects, Antineoplastic Combined Chemotherapy Protocols pharmacokinetics, Antineoplastic Combined Chemotherapy Protocols administration & dosage
- Abstract
Objectives: NS-87/CPX-351 is a dual-drug liposomal encapsulation of cytarabine and daunorubicin. NS-87/CPX-351 exerts antileukemic action by maintaining a synergistic molar ratio of cytarabine to daunorubicin of 5:1 within the liposome while in circulation. Patients with high-risk acute myeloid leukemia (AML), which includes therapy-related AML and AML with myelodysplasia-related changes (AML-MRC), have poorer outcomes than those with other AML., Methodology: This open-label phase 1/2 (P1/2) study was conducted in 47 Japanese patients aged 60-75 years with newly diagnosed high-risk AML to evaluate the pharmacokinetics, safety, and efficacy of NS-87/CPX-351., Results: In the 6 patients enrolled in the P1 portion, no dose-limiting toxicities (DLTs) were reported, and 100 units/m
2 during the induction cycle was found to be acceptable. Cytarabine and daunorubicin had a long half-life in the terminal phase (32.8 and 28.7 h, respectively). In the 35 patients enrolled in the P2 portion, composite complete remission (CRc; defined as complete remission [CR] or CR with incomplete hematologic recovery [CRi]) was achieved in 60.0% (90% CI: 44.7-74.0) of the patients. Adverse events due to NS-87/CPX-351 were well tolerated., Outcomes: NS-87/CPX-351 can be considered as a frontline treatment option for Japanese patients with high-risk AML., (© 2024. The Author(s).)- Published
- 2024
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